2.0L vs. 2.2L

[TunaTalon]

If you go through all of the hassle to swap in a 2.4L block then you can use longer rods and stroker pistons to improve the rod ratio slightly. With the longer rods you can use the lighter pistons in the 2.4L block.

I choose the 2.3L stroker because in my A/T Talon I will shift at 7K RPM anyway.

 

[dsm-onster]

Excellent point! Slightly more rod brings the safe rev limit even higher.

Can't you hold your automatic transmission out higher than 7K by using the shifter? I know the pump can handle it, per what the guys at IPT told me. I don't know what the TCU would think about all that . The reason why I'm asking is that my brother has an automatic 1Ga and is very interested in a stroker as well. It appears he has the same goal as yours was.

 

[TunaTalon]

Yes the A/T DSM can be made to shift at a higher RPM. However to keep the design balanced the turbo should be bigger, and the cams should be bigger then you will lose some of the low end grunt that I wanted to start with.

Goals are never wrong.

 

[dsm-onster]

Of course goals are never wrong . I'm not looking to copy someone else. But I've had a difficult time "balancing" his car. I've never modified an auto matic car except that I help upgrade my fathers GN. Which is an entirely different animal. You make a good point with which he needs to contend. A "late hitting" pair of cams will not be remotely fun on the street with an automatic FOR HIM (I say this because I know him). And, besides, he's looking at a stroker for more streetable fun. I'm going to tell him what I already told him, pick a goal and suffer the consequences. After this, he'll probably give me his 1g shell anyway and get a blown 2g awd 5speed he's noticed.

 

[TunaTalon]

That's a lot like my sensibilities. Balancing an automatic DSM requires a wider torque band than for a manual. With only four gears to handle zero to 140 MPH each gear needs to operate over a longer MPH range. For streetable fun the low end needs to have more torque just to keep up with the blue haired lady in the Grand Marque when the light turns green.

I put an extra kilobuck into a high stall billet torque converter to at least act like more gearing at low RPM. That has worked out well because the engine just doesn't work much at low RPMs. However if your brother is used to the immediate response of a high displacement engine in a manual car the high stall TC will be annoying. The engine will rev up before the car really gets going, and it can feel a little disconnected.

I like your description of "pick a goal and suffer the consequences." I've been doing that professionally for decades and never put it that clearly.

 

[rstare]

For streetable fun the low end needs to have more torque just to keep up with the blue haired lady in the Grand Marque when the light turns green.
QUOTE]
Im driving a Grand Marquis right now, . While the eclipse is down.

 

[Slippi84]

For streetable fun the low end needs to have more torque just to keep up with the blue haired lady in the Grand Marque when the light turns green.
QUOTE]
Im driving a Grand Marquis right now, . While the eclipse is down.

I have two dsm's and I drive around in a jeep liberty. Funny thing is though my liberty can give my 2gnt a run for it's money